Light oil-gas two-phase flow pattern identification in different pipe orientations: An experimental approach

被引：0

作者：

Hanafizadeh P. ^{[1
]}

Eshraghi J. ^{[1
]}

Nazari Y. ^{[1
]}

Yousefpour K. ^{[1
]}

Akhavan Behabadi M.A. ^{[1
]}

机构：

[1] School of Mechanical Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran

来源：

Hanafizadeh, P. (hanafizadeh@ut.ac.ir) | 2017年 / Sharif University of Technology卷 / 24期

基金：

美国国家科学基金会;

关键词：

Experimental two-phase flow investigation; Flow maps in inclined pipe; High-speed photography; Oil-air two-phase flow patterns;

D O I：

10.24200/sci.2017.4303

中图分类号：

学科分类号：

摘要：

In this paper, an experimental study on the flow patterns of two-phase air-light oil flow is performed in a 20 mm diameter pipe with a length of 6 m in different orientations with pipe angles in the range of -45 to +45. The flow regimes are captured by a high-speed camera. In the experiments, the following are used: the air with the viscosity of 0.019 mPa.s and the density of 1.2 kg/m as well as the light oil with the viscosity of 2.6 mPa.s and the density of 840 kg/m3. During the experiments, different flow patterns are observed such as bubbly, slug, smooth stratified, wavy stratified, and annular flows. Flow regimes in different pipe inclination angles are inspected in a two-phase air-light oil flow, and flow pattern maps are proposed for every pipe inclination angle. In addition, a comprehensive study on the major forces acting on dispersed phase is presented theoretically to perform a thorough discussion on the effects of pipe inclination angle on transition boundaries between flow patterns in the two-phase air-light oil flow. It is inferred that non-stratified flows are dominant flow patterns in the upward flows, and stratified flows are dominant flow patterns in the downward flows. © 2017 Sharif University of Technology. All rights reserved.

引用

页码：2445 / 2456

页数：11